IIRC, you do a compression test by replacing the spark plug with the
compression meter. You normally pull all the plugs if there are more
than one cylinder. So how can it start? (I've never done this on a
two stroke, just on auto engines. Is something different?)

"Clams Canino" writes:

Safe to crank it - don't start it. You don't have a set of muffs?

-W

"Scott W." wrote in message
news
Is it safe to crank over an outboard to test compression without
putting the lower unit in water, or will you damage the impeller?

Scott W.



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